Chuck



F. C. PALOSKY.

CHUCK.

APPLICATION FILED JULY 11. I919.

' 1,346,245, I Patented July 13,1920.

f r ii eminence rues m ii,

land and State of Michigan, have invented certain new and useful improvements in Chucks, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in chucks and has relation noore especially to a device of this general character especially designed and adapted to hold a tool for drilling and the like or for tapping, and it is an object of the invention to provide a novel improved device of this general charac er including relatively nowable parts normally maintained by friction means for unitary rotation.

it is also an oloject of the invention to provide a novel and improved chuck of this general character which will lessen the breakage of drills and taps and is quick acting for bolting up.

The invention consists in details of construction and in the combination and an rangement oi the several parts of my ini proved chuck whereby certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will he hereinafter more fully set forth.

The novel features of m invention wil hereinafter he definitely claimed.

in order that my invention he e better understood, l will now proceed describe same with reference to the accompanying drawings, wherein:

Figure 1 is a view partly in side elevation and partly in section illustrating a chuclt constructed in accordance with an ernhodimerit of my invention.

2 is a view in end elevation oi the socket member as herein en'ihodied.

3 is a view in end elevation of the member with which the socliet rneniher gages, and

Fig. t is a view partly in elevation partly in section of the not mid enacting shank, as herein included.

disclosed in the accompanying ings, my in proved chueli comprises racinher 1 having in its outer end portion a socket 2 of desired cross sectional coingutipecification oi hotter-s Patent,

Z'Patented lolly itlfith will). "denial its. $113,243

ration and which has its inner end portion provided with an internally threaded recess 3 to receive the threaded end portion of the stem 41-.

The opposite end portion oi the stem 4 is provided with a head 5 and the outer! end portion of the head 5 is defined by an outstanding annular flange 6.

At diametrically opposed points the head 5 is provided with the flattened "faces 7 to facilitate engagement therewith oi awrench or other tool as the occasions of practice may necessitate.

C denotes a cap having its sidewall 8 internally threaded and having its central or body portion 9 provided with an opening 10 through which the stern and head 5 are insertible. The flange 6 overlies the inner face of the portion of the cap C surrounding the opening ll).

Mounted upon the head 5 is a fiber washer 11 which, when the device is in assembled relation is interposed between the "flange 6 and the opposed face of the cap C.

l l denotes a nut engagealole with the Bil threads of the wall 8 of the can U and in- V with a threaded bore 14- in which is engaged the threaded potion of shank S. The shanlr and nut l t further connected by a to prevent unscrewing oi the nut it d shank 55 one relative to the other when the device is in use.

in practice the frictional contact of the nut N with the head 5 through the washer 12 is sufiicient to cause the head 5 and the niernher 1 operatively engaged with the head to rotate in unison duringa worlring operation hut upon undue resistance losing oii ered loy the work the shanlr S, not It and cap C will be permitted to rotate independentiy oi the head 5 so that the hrealiing of drill in the event the drill should sticlg or from any other cause its rotation is stopped and similarly whereby a top is prevented from breaking when the tap tightened sn'fiiciently. in view of this advantagenus feature, my improved chucl: may he employed with equal facility in reaming, holting, counter ooring or the like,

in order to regulate or control the desired till Mi li through the outstanding flange 16 the equidistantly spaced screws 17 which are engageable with the outer or free edge of the wall 8 of the cap C. The screws 17 are equi-distantly spaced and preferably three in number.

From the foregoing description, it is thought to be obvious that a chuckconstructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated and it will also be obvious that my invention is susceptible of some change and modification without departingifrom the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to theprecise arrangement and formation "of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed. 7

I claim:

l. A device of the character described comprising a cap, a head in swivel engageinent therewith, a socket member carried by the head, a nut engaged within the cap for frictional action upon the head, a shank engaged with the nut, and regulating members threaded through the nut for contact with the cap.

3. A. device of the character described comprising a cap having an opening in its central portion, a head disposed, through said opening and extending within the cap, the inserted end portion of the cap being defined by an outstanding flange, a socket member engaged with the opposite end portion of thehead, a fiber member surrounding the head and interposed between the flange thereof and the body of the cap, a nut threaded within the cap, a fibrousmember interposed between the cap and the head, and a shank engaged with the nut.

In testimony whereof I hereunto aliix my signature in the presence of two witnesses.

FRED C. PALOSKY.

Witnesses:

WILLIAM C. ZIMMERMANN,

VERN LARKIN. 

